A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5935-01-484-6715
NSN 6220-00-913-8486
NSN 5905-01-131-2756
NSN 5985-00-406-1141
NSN 5996-01-272-7879
NSN 5945-00-275-5451
NSN 6620-00-148-9613
NSN 4140-01-424-5216
NSN 6645-00-460-0528
NSN 5920-01-579-3754
NSN 6145-00-320-4855
NSN 6685-01-061-9516